"X-bar" meaning in English

{
  "etymology_text": "Pronunciation of its text representation: a letter X with overbar.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun"
      },
      "expansion": "X-bar",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Grammar",
          "orig": "en:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1988, Andrew Radford, chapter 7, in Transformational grammar: a first course, Cambridge, UK: Cambridge University Press, page 350",
          "text": "For example, the fact that give must occur as the leftmost constituent of the V-bar containing it follows from two conditions. The first is a putatively universal linearisation (i.e. word-order) principle proposed by Stowell (1981, p. 68) which we might call the PERIPHERY PRINCIPLE: this can be outlined informally as in (33) below:\n(33) PERIPHERY PRINCIPLE\n(33) The head term of a Phrase appears at the periphery of X-bar\nWhat (33) says is that the Head must be the leftmost or rightmost immediate constituent of X-bar.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A phrase, or, equivalently, a node in a syntax tree, which consists either of: (1) an adjunct and another X-bar phrase, (2) a head, X, and an optional complement, or (3) a conjunction sandwiched between two other X-bars. The X is a \"pro-letter\" which can be substituted by letters such as N for noun, V for verb, P for preposition, I for inflectional, etc."
      ],
      "holonyms": [
        {
          "word": "XP"
        }
      ],
      "hyponyms": [
        {
          "word": "I-bar"
        },
        {
          "word": "N-bar"
        },
        {
          "word": "P-bar"
        },
        {
          "word": "V-bar"
        }
      ],
      "id": "en-X-bar-en-noun-TiOZDzlE",
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "phrase",
          "phrase"
        ],
        [
          "equivalently",
          "equivalently"
        ],
        [
          "node",
          "node"
        ],
        [
          "syntax tree",
          "syntax tree"
        ],
        [
          "adjunct",
          "adjunct"
        ],
        [
          "complement",
          "complement"
        ],
        [
          "conjunction",
          "conjunction"
        ],
        [
          "sandwiched",
          "sandwiched"
        ]
      ],
      "meronyms": [
        {
          "word": "adjunct"
        },
        {
          "word": "head"
        },
        {
          "word": "complement"
        }
      ],
      "qualifier": "X-bar theory",
      "raw_glosses": [
        "(grammar, X-bar theory) A phrase, or, equivalently, a node in a syntax tree, which consists either of: (1) an adjunct and another X-bar phrase, (2) a head, X, and an optional complement, or (3) a conjunction sandwiched between two other X-bars. The X is a \"pro-letter\" which can be substituted by letters such as N for noun, V for verb, P for preposition, I for inflectional, etc."
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "X-bar"
}

{
  "etymology_text": "Pronunciation of its text representation: a letter X with overbar.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun"
      },
      "expansion": "X-bar",
      "name": "head"
    }
  ],
  "holonyms": [
    {
      "word": "XP"
    }
  ],
  "hyponyms": [
    {
      "word": "I-bar"
    },
    {
      "word": "N-bar"
    },
    {
      "word": "P-bar"
    },
    {
      "word": "V-bar"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "meronyms": [
    {
      "word": "adjunct"
    },
    {
      "word": "head"
    },
    {
      "word": "complement"
    }
  ],
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "en:Grammar"
      ],
      "examples": [
        {
          "ref": "1988, Andrew Radford, chapter 7, in Transformational grammar: a first course, Cambridge, UK: Cambridge University Press, page 350",
          "text": "For example, the fact that give must occur as the leftmost constituent of the V-bar containing it follows from two conditions. The first is a putatively universal linearisation (i.e. word-order) principle proposed by Stowell (1981, p. 68) which we might call the PERIPHERY PRINCIPLE: this can be outlined informally as in (33) below:\n(33) PERIPHERY PRINCIPLE\n(33) The head term of a Phrase appears at the periphery of X-bar\nWhat (33) says is that the Head must be the leftmost or rightmost immediate constituent of X-bar.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A phrase, or, equivalently, a node in a syntax tree, which consists either of: (1) an adjunct and another X-bar phrase, (2) a head, X, and an optional complement, or (3) a conjunction sandwiched between two other X-bars. The X is a \"pro-letter\" which can be substituted by letters such as N for noun, V for verb, P for preposition, I for inflectional, etc."
      ],
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "phrase",
          "phrase"
        ],
        [
          "equivalently",
          "equivalently"
        ],
        [
          "node",
          "node"
        ],
        [
          "syntax tree",
          "syntax tree"
        ],
        [
          "adjunct",
          "adjunct"
        ],
        [
          "complement",
          "complement"
        ],
        [
          "conjunction",
          "conjunction"
        ],
        [
          "sandwiched",
          "sandwiched"
        ]
      ],
      "qualifier": "X-bar theory",
      "raw_glosses": [
        "(grammar, X-bar theory) A phrase, or, equivalently, a node in a syntax tree, which consists either of: (1) an adjunct and another X-bar phrase, (2) a head, X, and an optional complement, or (3) a conjunction sandwiched between two other X-bars. The X is a \"pro-letter\" which can be substituted by letters such as N for noun, V for verb, P for preposition, I for inflectional, etc."
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "X-bar"
}